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If dy/dx + 3/(cos^2x) y = 1/(cos^2x), x ∈ (-π/3, π/3) and y(π/4) = 4/3, then y (- π/4) equals

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If dy/dx + 3/(cos2x) y = 1/(cos2x), x ∈ (-π/3, π/3) and y(π/4) = 4/3, then y (- π/4) equals

(1) 1/3 + e6 

(2) 1/3

(3) - 4/3

(4) 1/3 + e3

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Correct option: (1) 1/3 + e6 

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+1 vote
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Correct option: (1) 1/3 + e6

Explanation:

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